Gas-stove.



BATENTED APR. 21, 1903.

,3. E. FREDERICK.

GAS STOVE.

APPLICATION FILED MAR. 19 1901.

N0 MODEL.

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UNITED STATES ATENT FFICE' EDWIN E. FREDERICK, OF AVALON, PENNSYLVANIA.

GAS-STOVE.

ESPECIFICATION forming part of Letters Patent No. 725,834, dated April 21, 1903.

Application filed March 19. 1901. ,Serial-No. 51.905. (No model.)

To all whom it may concern.-

Be it known that I, EDWIN E. FREDERICK, a citizen of the United States, residing at Avaion, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Gas-Stove, of which the following is a specification.

This invention relates to gas-stoves.

The object of the invention is to provide a With these and other objects in view, as will appear as the nature of the invention is better understood, the same consists in the novel construction and combination of parts of a gas-stove, as will be hereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specification and in which like numerals of reference indicate corresponding parts, there is illustrated a form of embodimeut of the invention capable of carrying the same into practical operation, it being understood that the elements therein exhibited may be varied or changed as to shape, proportion, and exact manner of assemblage without departing from the scope thereof, and in these drawings Figure 1 is a vertical sectional view of a gas-stove constructed in accordance with my invention. Fig. 2 is a-detail sectional view of a slightly-modified-form of flame-spreader or burner.

Referring to the drawings, 1 designates generally the frame or body of the stove,which may be of any preferred form and construction and is herein exhibited as provided with an open front portion 2, where the gas is burned, and, by preference, witha drum 3 on its rear side. In the embodiment of the invention herein illustrated the drum has its intake at the upper front side thereof at at and is provided with a downwardly-extending baffle-plate 5,which is interposed between the intake 4 and the outlet 6 and constitutes, in conjunction with front wall 3 and rear wall 3 of the drum, a tortuous passage for the smoke or draft, whereby the heated air from the chamber 2 is caused first to pass downward to a point near the bottom of the drum are thus supported.

and thence upward before escaping through the outlet, and by this arrangement practically all of the heat units resulting from combustion of the fuel are utilized to heat the air surrounding the stove by radiation from the drum.

The front portion of the stove is provided near its lower side with suitable air-intakes 7, and arranged above the air-intakes is a mixing-ch am ber 8,which extends across the front 'portion of the stove and forms the bottom of the chamber 2. ,provided with air-intakes 9, gas being sup- The mixing-chamber is also plied to the-chamber through a pipe 10, connecting with a suitable source of supply, and

after being thoroughly admixed with air passes to the upper portion of the mixingcham ber.

In the chamber 2 and extending from the topof the stove to the mixing-chamber 8 is a series of flame-spreadersand radiators 11, which are of tapered or coue'form and have their smallest end resting upon or projecting through the mixing-chamber 8. The upper ends of these flame-Spreaders or radiators are extended through the upper part of the frame or casing l, which is provided with openings '25 for the passage thereof, and the said radiators are furthermore provided at their upper edges with flanges 26, resting upon the upper side of the frame or casing, where they A portion of the said frame or casing depends in front of the said radiators, forming 'a shield 27, whereby the products of combustion are guided to the in-' take 4 of the drum 3. The said flame-spreaders and radiators may be made of cast or sheet metal, but generally of the former, and

are by preference provided with projections 12 on their exterior surfaces, which operate to augment the radiating area thereof, and surrounding the lower ends of the Spreaders and arranged in the top of the mixing-chamber is'a series of jet-orifices 13. In this form of embodiment of the invention the mixingchamber constitutes the burner, and the flames from the burning gas pass upward around the exposed surfaces of the spreaders and highly heat the same. By arranging the lower ends of the Spreaders on the topof the mixing-chamber the flames from the burners are caused to lick or impinge against the outer surfaces of the spreaders from their lower ends upward to and as far as the intake 4:, thereby causing the entire outer area of the spreader-s to be thoroughly heated, whereby with a given volume of mixed gas and air the highest possible number of radiated heat units is secured. To augment the heating capacity of the stove, the spreaders and radiators and also the back and sides of the chamber 2 are covered with asbestos fiber, (indicated by 14.)

In the embodiment of the invention exhibited in Fig. 1 the upper ends of the spreaders and radiators, which are hollow, are open, and these ends pass through the top of the stove, resting thereon by the flanges 26, as

described, so that external air in the room in which the stove is located will enter the interior of the spreaders and radiators, and thereby become heated, the said Spreaders thereby acting as radiators both at their interior and exterior surfaces.

In the form of embodiment of the invention shown in Fig. 2 the spreaders and radiators constitute burners, being hollow, as shown, and closed at their upper ends by a plate 15 and are provided at suitable intervals in their lengths with orifices 16, their lower ends being open at 17 and communicating with the mixingchamber 8.

While the stove is herein shown as having an open front, it is to be understood that, if preferred, the same may be closed, and as this will be readily understood detailed illustration thereof is deemed unnecessary.

It will be observed that the conical radiators employed in connection with my invention are made tapering to a point at'their lower ends, where they are supported upon the mixing-chamber. By this construction I gain a neatness of appearance which could not be attained if said radiators were frustumshaped-that is, with comparatively large lower ends. I am also thus enabled to reduce the number of gas-orifices and still provide for the complete envelopment of the radiators with flame in the form of my invention illustrated in Fig. 1, while in the form illustrated in Fig. 2 a single fianie orifice will be sufficiently effective, which would not be the case if the radiator were frustnm-shaped that is, with a large lower or supporting end. I am thus justified in describing the radiators of my invention as conical, as contradistinguished from frustum-shaped; but u this conical construction renders it necessary that there should be some support for the radiators besides that afforded by the mixingchamber at theirlowcr pointed ends, and this support is achieved by resting'the flanges 26 upon the upper side of the stove-casing, as herein shown and described.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a gas-stove, the combination of a mixing-chamber having gas-orifices, radiators supported upon said mixing-chamber and extending through the top of the stove-casing, a heating-drum having an intake near its upper end, and a shield depending from the top of the stove in front of the radiators, substantially as set forth.

2. In a gas-stove, a conical radiator supported at its pointed end upon the mixingchamber and having its upper large end extended through and supported upon the stovecasing, substantially as set forth.

3. In a gas-stove, the combination of a easing, a heating-drum at the back thereof having an intake near its upper end and within the casing, a shield depending at the front side of the top of the casing, conical radiators extending through and supported on the top of the casing and a mixing-chamber supporting the lower pointed ends of said conical radiators and having gas-orifices, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

EDWIN E. FRED ERICK.

Witnesses:

ERANK G. MILLER, R. W. MILLER. 

